The following data set shows the probability distribution for a survey conducted t determine the number of bedrooms in the respondent's household. Number of bedrooms Probability 0.25 4 0.55 0.15 0.05 Total 1

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(i) Calculate the mean of the probability distribution. 


(ii) Calculate the variance and standard deviation of this probability
distribution.

The following data set shows the probability distribution for a survey conducted to
determine the number of bedrooms in the respondent's household.
Number of bedrooms
Probability
3
0.25
4
0.55
0.15
0.05
Total
1
Transcribed Image Text:The following data set shows the probability distribution for a survey conducted to determine the number of bedrooms in the respondent's household. Number of bedrooms Probability 3 0.25 4 0.55 0.15 0.05 Total 1
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